The accuracy of the laser range finder mainly depends on the calculation accuracy of the time between the laser emission and the receiving of the instrument. According to the technology used and the application, the laser range finder can be divided into a conventional laser range finder with an accuracy of about 1 meter ( Mainly used for outdoor sports, hunting, etc.) and high-precision laser rangefinders used in surveying and mapping, land measurement, construction, engineering applications, military and other occasions that require high accuracy.
The phase method rangefinder is a rangefinder that modulates the phase of the laser and obtains the distance by measuring the phase difference of the reflected laser. Due to the need to detect the reflected laser phase, the received signal needs to have a strong intensity. Considering the safety of the human eye, the same telescopic system as the pulsed laser rangefinder cannot be used, and the range is small. , the typical range of distance measurement is 0.5mm to 150 meters, the general phase method laser rangefinder uses 635nm (visually red) laser as the debugging object, also commonly known as infrared rangefinder, but in fact the definition of laser is not based on The color is defined by the color, and if the 635-nanometer laser rangefinder is directly irradiated to the human eye, it will cause irreversible damage, please use and protect the reader correctly.
